JP3065820U - Elastic shaft coupling - Google Patents
Elastic shaft couplingInfo
- Publication number
- JP3065820U JP3065820U JP1999006292U JP629299U JP3065820U JP 3065820 U JP3065820 U JP 3065820U JP 1999006292 U JP1999006292 U JP 1999006292U JP 629299 U JP629299 U JP 629299U JP 3065820 U JP3065820 U JP 3065820U
- Authority
- JP
- Japan
- Prior art keywords
- elastic
- elastic body
- engine
- hub
- shaft coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
(57)【要約】
【課題】 エンジンのフライホイールなどと従動軸とを
連結し、エンジンのトルクを従動軸に伝達すると同時
に、取付誤差やエンジンの出力変動を吸収する機構を備
えた弾性軸継手を提供する。
【解決手段】 ゴムなどからなる弾性部３を有し、エン
ジンのフライホイール１等に取り付けられる弾性体２
と、弾性体２の内周部に固定されたハブ６からなり、エ
ンジンの回転をハブ６に固定した従動軸７に伝達すると
ともに、弾性体２に設けた弾性部３の弾性変形により駆
動側の出力変動や従動側の負荷変動、および装置間の取
付誤差を吸収する弾性軸継手において、弾性部３の硬度
を上げることで変形量を抑えるとともに、変形時の応力
集中が起こりにくい形状とし、予備圧縮なしでの使用に
おいても充分な耐久性をもたせたことを特徴とする。
(57) Abstract: An elastic shaft coupling having a mechanism for connecting an engine flywheel or the like to a driven shaft, transmitting engine torque to the driven shaft, and absorbing a mounting error and engine output fluctuation. I will provide a. An elastic body (2) having an elastic part (3) made of rubber or the like and attached to a flywheel (1) or the like of an engine.
And a hub 6 fixed to the inner peripheral portion of the elastic body 2, and transmits the rotation of the engine to a driven shaft 7 fixed to the hub 6, and at the driving side by elastic deformation of the elastic section 3 provided on the elastic body 2. In the elastic shaft coupling that absorbs the output fluctuation and the load fluctuation on the driven side, and the mounting error between the devices, while increasing the hardness of the elastic portion 3, the deformation amount is suppressed, and the shape in which the stress concentration at the time of deformation hardly occurs, It is characterized by having sufficient durability even when used without preliminary compression.
Description
【０００１】[0001]
本考案は、エンジンのフライホイール等と従動軸とを連結し、エンジンのトル クを従動軸に伝達すると同時に、駆動側の出力変動や従動側の負荷変動、および 装置間の取付誤差を吸収する機構を備えた弾性軸継手に関するものである。 The present invention connects the engine flywheel and the driven shaft to the driven shaft to transmit the torque of the engine to the driven shaft, and at the same time absorbs output fluctuations on the drive side, load fluctuations on the driven side, and mounting errors between devices. The present invention relates to an elastic shaft coupling having a mechanism.
【０００２】[0002]
従来、ディーゼルエンジン等に多く用いられる弾性軸継手は、エンジンのフラ イホイール等と従動軸とを連結し、周方向に設けられた弾性部を介してトルク伝 達をおこなうと同時に、弾性部の弾性変形により駆動側の出力変動や従動側の負 荷変動、および装置間の取付誤差を吸収するように構成されていた。 Conventionally, elastic shaft couplings often used in diesel engines and the like connect the flywheel and the driven shaft of the engine to the driven shaft, transmit torque through elastic parts provided in the circumferential direction, and It was configured to absorb output fluctuations on the drive side, load fluctuations on the driven side, and mounting errors between devices due to elastic deformation.
【０００３】 図２に従来の弾性軸継手の一例を示す。弾性体２はフライホイール１等に固定 される取付部Ａ４とハブに固定される取付部Ｂ５を周方向に交互に有し、それぞ れの間にはゴム等からなる弾性部３が設けられている。フライホイール１等の端 面には弾性体２の取付部Ａ４に対応したねじ穴が設けられ、弾性体２はフライホ イール１にボルト８により固定されている。従動軸７に固定されるハブ６は外周 に弾性体を固定するためのねじ穴を有し、弾性体２がボルト８により固定される 。FIG. 2 shows an example of a conventional elastic shaft coupling. The elastic body 2 has mounting portions A4 fixed to the flywheel 1 and the like and mounting portions B5 fixed to the hub alternately in the circumferential direction, and an elastic portion 3 made of rubber or the like is provided between each. ing. A screw hole corresponding to the mounting portion A4 of the elastic body 2 is provided on an end face of the flywheel 1 and the like, and the elastic body 2 is fixed to the flywheel 1 by bolts 8. The hub 6 fixed to the driven shaft 7 has a screw hole on the outer periphery for fixing the elastic body, and the elastic body 2 is fixed by the bolt 8.
【０００４】 図２の弾性軸継手において、弾性体２に設けられた取付部Ｂ５は自由状態でハ ブ６の外径や取付部Ａ４よりも大きなピッチ円上に位置しており、ハブ６に弾性 体２を固定する際に取付部Ｂ５が中心に向かって移動し、取付部Ａ４と取付部Ｂ ５の間の距離が短くなることで弾性部３に予備圧縮をかける構造となっていた。In the elastic shaft coupling shown in FIG. 2, the mounting portion B5 provided on the elastic body 2 is located on a pitch circle larger than the outer diameter of the hub 6 and the mounting portion A4 in a free state. When the elastic body 2 is fixed, the mounting portion B5 moves toward the center and the distance between the mounting portion A4 and the mounting portion B5 is shortened, so that the elastic portion 3 is preliminarily compressed.
【０００５】 図３は従来の弾性軸継手の第２の例である。従動軸に固定されるハブ６に回り 止め９を設け、フライホイール１に固定するための取付部Ａ４を有する弾性体２ を一体で成形し、ハブ６と弾性体２が円筒状のケース１０に収められている。こ こで、弾性体２に設けられた取付部Ａ４は自由状態でケース１０の内径よりも大 きなピッチ円上に位置しており、取付部Ａ４を中心に向かって移動させた状態で ケース１０に収めることで、回り止め９と取付部Ａ４の間の距離を短縮し、弾性 部３に予備圧縮をかける構造となっていた。FIG. 3 shows a second example of a conventional elastic shaft coupling. A detent 9 is provided on a hub 6 fixed to the driven shaft, and an elastic body 2 having an attachment portion A4 for fixing to the flywheel 1 is integrally formed. The hub 6 and the elastic body 2 are formed in a cylindrical case 10. It is stored. Here, the mounting portion A4 provided on the elastic body 2 is located in a free state on a pitch circle larger than the inner diameter of the case 10, and the mounting portion A4 is moved toward the center when the mounting portion A4 is moved toward the center. 10, the distance between the detent 9 and the mounting portion A4 is reduced, and the elastic portion 3 is preliminarily compressed.
【０００６】[0006]
前述した従来の弾性軸継手ではゴム等からなる弾性部に充分な耐久性を持たせ るために、引張りよりも圧縮に強いという特性を利用するための予備圧縮を必要 とし、組立てや取り付けに多くの労力を必要としていた。 The conventional elastic coupling described above requires pre-compression to utilize the property of being more resistant to compression than tension in order to provide sufficient durability to the elastic part made of rubber or the like, and is often used for assembly and installation. Labor was needed.
【０００７】 また予備圧縮をおこなうために、弾性体の形状を実際の使用時の形状よりも大 きく成形する必要があり、材料の使用量が多くなる上、ゴム成形型の大型化およ び成形用設備全体の大型化を招いていた。In order to perform pre-compression, the shape of the elastic body needs to be formed larger than the shape at the time of actual use, so that a large amount of material is used, and the size of the rubber mold is increased. This has led to an increase in the size of the molding equipment.
【０００８】 本考案は、前述のような従来の技術の問題を解決し、予備圧縮を廃することで 組み立てや取り付けに要する労力を低減するとともに、弾性体を成形する際の材 料の使用量を低減し、さらには成形型および成形用設備の小型化により成形コス トの低減に貢献することが可能である弾性軸継手を提供することを目的とする。The present invention solves the above-mentioned problems of the prior art, eliminates the pre-compression, reduces the labor required for assembly and installation, and reduces the amount of material used when molding the elastic body. It is an object of the present invention to provide an elastic shaft coupling capable of contributing to a reduction in molding costs by reducing the size of molding tools and molding equipment.
【０００９】[0009]
ゴムなどからなる複数の弾性部３を有する弾性体２を設け、エンジンのフライ ホイール１等の端面に前記弾性体２を取り付ける。弾性体２の内周部にはハブ６ を固定し、ハブ６に従動軸７を嵌合する。エンジンの回転を弾性体２を介して従 動軸７に伝達するとともに、弾性体２に設けた弾性部３の弾性変形により駆動側 であるエンジンの出力変動や従動側の負荷変動、および装置間の取付誤差を吸収 する弾性軸継手において、弾性部３の硬度を上げることで前記弾性変形時の変形 量を抑えるとともに、変形時の応力集中が起こりにくい形状を各部に採用し、予 備圧縮なしでの使用においても充分な耐久性をもたせた。 本考案は、以上の構成よりなる弾性軸継手である。 An elastic body 2 having a plurality of elastic portions 3 made of rubber or the like is provided, and the elastic body 2 is attached to an end face of an engine flywheel 1 or the like. A hub 6 is fixed to the inner peripheral portion of the elastic body 2, and a driven shaft 7 is fitted to the hub 6. The rotation of the engine is transmitted to the driven shaft 7 via the elastic body 2, and the output of the engine on the driving side, the load fluctuation on the driven side, and the device In the elastic coupling that absorbs the mounting error of the above, the amount of deformation during the elastic deformation is suppressed by increasing the hardness of the elastic part 3, and a shape that does not easily cause stress concentration during the deformation is adopted for each part, and there is no preliminary compression. It has sufficient durability for use in The present invention is an elastic shaft coupling having the above configuration.
【００１０】[0010]
以下、図面に基づき本考案の実施の形態を説明する。 図１は本考案の弾性軸継手の正面図である。弾性体２に取付部Ａ４と取付部Ｂ ５を周方向に交互に設け、取付部Ａ４および取付部Ｂ５にはアルミニウムなどか らなる芯材を一体で接着成形する。弾性体２の取付部Ａ４と取付部Ｂ５の間の部 分にはゴムなどからなる弾性部３を成形する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the elastic shaft coupling of the present invention. Mounting portions A4 and mounting portions B5 are alternately provided in the elastic body 2 in the circumferential direction, and a core material made of aluminum or the like is integrally bonded to the mounting portions A4 and B5. An elastic portion 3 made of rubber or the like is formed in a portion between the attaching portion A4 and the attaching portion B5 of the elastic body 2.
【００１１】 取付部Ａ４には弾性体２をフライホイール１にボルト８で固定するために、ア キシャル方向に貫通穴を設ける。前記貫通穴のピッチはフライホイール１に設け られたねじ穴と等しくなっている。The mounting portion A 4 is provided with a through hole in the axial direction for fixing the elastic body 2 to the flywheel 1 with the bolt 8. The pitch of the through holes is equal to the screw holes provided in the flywheel 1.
【００１２】 取付部Ｂ５には弾性体２をハブ６にボルト８で固定するために、ラジアル方向 に貫通穴を設ける。取付部Ｂ５の内径とハブ６の外径は等しく、前記貫通穴はハ ブ６に設けられたねじ穴と等しい間隔となっている。A through hole is provided in the mounting portion B5 in the radial direction to fix the elastic body 2 to the hub 6 with a bolt 8. The inner diameter of the mounting portion B5 is equal to the outer diameter of the hub 6, and the through holes are spaced at the same intervals as the screw holes provided in the hub 6.
【００１３】 ハブ６の軸心にはキー溝付きの穴やスプラインが設けられ、従動軸７を嵌合す ることで完全に固定、もしくは軸方向には滑動可能に回転方向に拘束する。A hole or a spline with a key groove is provided in the axis of the hub 6, and is completely fixed by being fitted with the driven shaft 7, or is slidably restricted in the axial direction in a rotational direction.
【００１４】 弾性体２の取付部Ａ４をフライホイール１にボルト８により固定し、取付部Ｂ ５をハブ６にボルト８で固定することで、フライホイール１と従動軸７を弾性部 ３を介して連結しフライホイール１の回転を従動軸７に伝達する。The mounting portion A 4 of the elastic body 2 is fixed to the flywheel 1 by bolts 8, and the mounting portion B 5 is fixed to the hub 6 by bolts 8, so that the flywheel 1 and the driven shaft 7 are connected via the elastic portion 3. And the rotation of the flywheel 1 is transmitted to the driven shaft 7.
【００１５】 図４は取付部Ａ４と弾性部３の境界部を拡大した断面図である。 従来の弾性軸継手よりもコーナー部ａ１１とコーナー部ｂ１２のフィレットの半 径を大きくし、周方向の断面積の変化率を小さくすることで、変形時の応力集中 を低減する構造となっており、取付部Ｂ５と弾性部３の境界部においても同様の 構造とする。FIG. 4 is an enlarged sectional view of a boundary portion between the mounting portion A 4 and the elastic portion 3. Compared to the conventional elastic joint, the radius of the fillet at the corners a11 and b12 is made larger and the rate of change of the cross-sectional area in the circumferential direction is made smaller, so that stress concentration during deformation is reduced. The same structure is used at the boundary between the mounting portion B5 and the elastic portion 3.
【００１６】 また、弾性体２に使用するゴムは従来の材料に比較して硬度の高い材料を用い 、負荷を受けた際の弾性変形によるひずみ量が従来よりも小さくなるよう設定す る。The rubber used for the elastic body 2 is made of a material having a higher hardness than a conventional material, and is set so that the amount of strain due to elastic deformation when receiving a load is smaller than that of the conventional material.
【００１７】 本考案は以上のような構成からなり、エンジンの回転を弾性体を介して従動軸 に伝達するとともに、弾性体に設けた弾性部が弾性変形することにより、フライ ホイールに従動軸を取り付ける際の偏心や偏角などの取付誤差、およびエンジン が回転する際の出力変動や従動側の負荷変動を吸収する。The present invention is configured as described above, and transmits the rotation of the engine to the driven shaft via an elastic body, and the elastic portion provided on the elastic body is elastically deformed, so that the driven shaft of the flywheel is connected to the driven shaft. Absorbs mounting errors such as eccentricity and declination during mounting, and fluctuations in output and driven load when the engine rotates.
【００１８】[0018]
本考案を使用すれば、従来から耐久性を確保するために必要だった予備圧縮が 不要となる。したがって、組み立てや取り付けを弾性体を変形させずにおこなう ことが可能になり、組み立てや取り付けの際の省力化をおこなうことができる。 The use of the present invention eliminates the need for pre-compression, which was previously required to ensure durability. Therefore, it is possible to perform the assembling and mounting without deforming the elastic body, and it is possible to save labor in assembling and mounting.
【００１９】 また、従来は予備圧縮をおこなうために、実際の使用状態の形状よりも弾性 体を大きく成形する必要があったが、本考案ではその必要はなく成形材料の使用 量を減少させることで省資源に貢献することができる。Conventionally, in order to perform pre-compression, it was necessary to form the elastic body larger than the shape in actual use. However, in the present invention, it is not necessary to reduce the amount of molding material. Can contribute to resource saving.
【００２０】 さらには従来よりも弾性体を小型に成形することで、成形時に使用する成形 型をはじめ成形機などの成形用設備を小型化することが可能であり、成形コスト の低減に貢献することが可能である。Further, by molding the elastic body smaller than before, it is possible to reduce the size of molding equipment such as a molding die used for molding and a molding machine, thereby contributing to a reduction in molding cost. It is possible.
【図１】本考案の実施例を示す分解斜視図である。FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
【図２】従来の弾性軸継手の第１例を示す分解斜視図で
ある。FIG. 2 is an exploded perspective view showing a first example of a conventional elastic shaft coupling.
【図３】従来の弾性軸継手の第２例を示す一部を切り欠
いた分解斜視図である。FIG. 3 is an exploded perspective view showing a second example of a conventional elastic shaft coupling with a part cut away.
【図４】本考案の弾性軸継手の一部を拡大した断面斜視
図である。FIG. 4 is an enlarged sectional perspective view of a part of the elastic shaft coupling of the present invention.
１ フライホイール ２ 弾性体 ３ 弾性部 ４ 取付部Ａ ５ 取付部Ｂ ６ ハブ ７ 従動軸 ８ ボルト ９ 回り止め １０ ケース １１ コーナー部ａ １２ コーナー部ｂ DESCRIPTION OF SYMBOLS 1 Flywheel 2 Elastic body 3 Elastic part 4 Attachment part A 5 Attachment part B 6 Hub 7 Follower shaft 8 Bolt 9 Detent 10 Case 11 Corner part a 12 Corner part b
Claims (1)
ジンのフライホイール１等に取り付けられる弾性体２
と、弾性体２の内周部に固定されたハブ６からなり、エ
ンジンの回転をハブ６に固定した従動軸７に伝達すると
ともに、弾性体２に設けた弾性部３の弾性変形により駆
動側の出力変動や従動側の負荷変動、および装置間の取
付誤差を吸収する弾性軸継手において、弾性部３の硬度
を上げることで変形量を抑えるとともに、変形時の応力
集中が起こりにくい形状とし、予備圧縮なしでの使用に
おいても充分な耐久性をもたせたことを特徴とする弾性
軸継手。An elastic body having an elastic portion made of rubber or the like and attached to a flywheel or the like of an engine.
And a hub 6 fixed to the inner peripheral portion of the elastic body 2, and transmits the rotation of the engine to a driven shaft 7 fixed to the hub 6, and at the driving side by elastic deformation of the elastic section 3 provided on the elastic body 2. In the elastic shaft coupling that absorbs the output fluctuation and the load fluctuation on the driven side, and the mounting error between the devices, while increasing the hardness of the elastic portion 3, the deformation amount is suppressed, and the shape in which the stress concentration at the time of deformation hardly occurs, An elastic shaft coupling characterized by having sufficient durability even when used without preliminary compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1999006292U JP3065820U (en) | 1999-07-15 | 1999-07-15 | Elastic shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1999006292U JP3065820U (en) | 1999-07-15 | 1999-07-15 | Elastic shaft coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3065820U true JP3065820U (en) | 2000-02-08 |
Family
ID=43199407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1999006292U Expired - Fee Related JP3065820U (en) | 1999-07-15 | 1999-07-15 | Elastic shaft coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3065820U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676688U (en) * | 1993-03-31 | 1994-10-28 | 愛知機械工業株式会社 | Electric fan |
| JP2018025210A (en) * | 2016-08-08 | 2018-02-15 | 株式会社小野測器 | Coupling for engine test device |
| US10690191B2 (en) | 2016-09-05 | 2020-06-23 | Smc Corporation | Elastic shaft coupling |
| JPWO2021250864A1 (en) * | 2020-06-11 | 2021-12-16 | ||
| WO2022122078A1 (en) * | 2020-12-10 | 2022-06-16 | KTR Systems GmbH | Elastic coupling having claw bodies with fastening holes embedded in an elastomeric ring |
-
1999
- 1999-07-15 JP JP1999006292U patent/JP3065820U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676688U (en) * | 1993-03-31 | 1994-10-28 | 愛知機械工業株式会社 | Electric fan |
| JP2018025210A (en) * | 2016-08-08 | 2018-02-15 | 株式会社小野測器 | Coupling for engine test device |
| US10690191B2 (en) | 2016-09-05 | 2020-06-23 | Smc Corporation | Elastic shaft coupling |
| JPWO2021250864A1 (en) * | 2020-06-11 | 2021-12-16 | ||
| WO2021250864A1 (en) * | 2020-06-11 | 2021-12-16 | 亮 石井 | Propulsive force generating device, and propulsive force generation method |
| WO2022122078A1 (en) * | 2020-12-10 | 2022-06-16 | KTR Systems GmbH | Elastic coupling having claw bodies with fastening holes embedded in an elastomeric ring |
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